Search a number
-
+
71108481568015 = 531214798851523
BaseRepresentation
bin10000001010110000111011…
…110010001100110100001111
3100022202220102100020211120001
4100022300323302030310033
533310020132240134030
6411122441354305131
720656263314346103
oct2012607362146417
9308686370224501
1071108481568015
1120725a35061761
127b853727281a7
13308a668a25678
14137b951551903
15834a64db8cca
hex40ac3bc8cd0f

71108481568015 has 12 divisors (see below), whose sum is σ = 88171557379992. Its totient is φ = 55051727661840.

The previous prime is 71108481568009. The next prime is 71108481568079. The reversal of 71108481568015 is 51086518480117.

It is not a de Polignac number, because 71108481568015 - 29 = 71108481567503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7399420957 + ... + 7399430566.

It is an arithmetic number, because the mean of its divisors is an integer number (7347629781666).

Almost surely, 271108481568015 is an apocalyptic number.

71108481568015 is a deficient number, since it is larger than the sum of its proper divisors (17063075811977).

71108481568015 is a wasteful number, since it uses less digits than its factorization.

71108481568015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14798851590 (or 14798851559 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 55.

The spelling of 71108481568015 in words is "seventy-one trillion, one hundred eight billion, four hundred eighty-one million, five hundred sixty-eight thousand, fifteen".

Divisors: 1 5 31 155 961 4805 14798851523 73994257615 458764397213 2293821986065 14221696313603 71108481568015